The module works as a stand-alone keyed monochord. It has a bottom plate & end plates where you can attach strings. Also, the octaves are independent and can be dropped into the acoustic modular stringed instrument. The design started off with a cardboard prototype. After some minor corrections, a wooden version was produced.

Clarify films is making a film a Don Buchla. Doc Buchla is one of the pioneers of electronic musical instruments. A true legend who not only helped spawn a generation of modular synthesizers, but also pushed the boundaries of what electronic music could be. And yes, his products are still for sale!